unfilterable
Resists all screening
Unfilterable is a very infrequent word for which the meaning can usually be deduced from the context.
If something is unfilterable, it cannot be filtered, either because of its physical characteristics or because there is no filter that can separate it.
Cannot be healed
- irreversibleCannot be undone
- intractableImpossible to manage
- irremediableImpossible to correct
- inoperableCannot be repaired
refractory · unresponsive · recalcitrant · unmanageable · uncontrollable · hopeless · terminal
Impossible to remove
- permanentFixed without end
- enduringPersisting through time
- lingeringRemaining beyond expected duration
- stubbornRefusing to change course
tenacious · irremovable · entrenched · pervasive · ubiquitous · chronic · intractable · resilient
Impossible to avoid
- unavoidableImpossible to prevent
- certainFree from doubt
- unstoppableImpossible to halt
- inexorableImpossible to prevent
predetermined · fated · assured · unpreventable · destined · guaranteed · immutable · unalterable
Unable to be affected
- impenetrableImpossible to pass through
- nonporousLacking absorbent openings
- watertightPrevents liquid from passing
- airtightImpervious to atmosphere
sealed · hermetic · barrier · membrane · unbreachable · resistant · impassable · sealant
Completely unmixed, genuine
- uncontaminatedFree from impurities
- pristinePure and untouched
- untaintedFree from contamination
- unprocessedNot yet treated
raw · undiluted · natural · unrefined · unaltered · whole · unmodified · unmixed
incurable
Cannot be healed
- irreversibleCannot be undone
- intractableImpossible to manage
- irremediableImpossible to correct
inoperable · refractory · unresponsive · recalcitrant · unmanageable · uncontrollable · hopeless · terminal
indelible
Impossible to remove
- permanentFixed without end
- enduringPersisting through time
- lingeringRemaining beyond expected duration
stubborn · tenacious · irremovable · entrenched · pervasive · ubiquitous · chronic · intractable · resilient · unyielding
inescapable
Impossible to avoid
- unavoidableImpossible to prevent
- certainFree from doubt
- unstoppableImpossible to halt
inexorable · predetermined · fated · assured · unpreventable · destined · guaranteed · immutable · unalterable · fixed
impervious
Unable to be affected
- impenetrableImpossible to pass through
- nonporousLacking absorbent openings
- watertightPrevents liquid from passing
airtight · sealed · hermetic · barrier · membrane · unbreachable · resistant · impassable · sealant · waterproof
unadulterated
Completely unmixed, genuine
- uncontaminatedFree from impurities
- pristinePure and untouched
- untaintedFree from contamination
unprocessed · raw · undiluted · natural · unrefined · unaltered · whole · unmodified · unmixed · unseparated
unfilterablefilterable
Can be separated out
removable · separable · extractable · strainable · trappable
filter, filtered, filtering, filtration, unfiltered, filtrate, filterable, prefilter, prefiltered